Remediation of PFAS Impacted Soil and Groundwater.

Over the past decade our EESI Group colleagues in Australia have been at the forefront of efforts to understand, manage and eliminate contamination risks posed by Per- and Polyfluroroalkyl substances (PFAS).

In the UK, EESI Remediation Limited have harnessed this expertise and knowledge to develop effective treatment options and support services for the remediation of PFAS impacted soil and groundwater. 

The remediation and management of PFAS impacted sites presents significant challenges, none more than delivering effective actions to reduce the impact of these forever chemicals on the environment. From auditing high profile Department of Defence sites in Australia through to pioneering risk assessment and conceptual modelling, the EESI Group has been tackling these challenges head-on for over a decade.  

The persistence, mobility, biomagnifying and toxic properties of PFAS means they present a potential risk at very low concentrations. While as a group, PFAS typically have high water solubility certain sub-groups can adsorb to soil organics at levels that present potential long-term source zone behaviour. PFAS (>C4) can be removed from water by certain types of activated carbon, ion exchange resins and an Australian invested foam fractionation technology. Emerging thermal and soil washing technologies have successfully treated PFAS source soil alongside immobilisation using certain types of activated carbon and clays, zeolites and/or proprietary products.  

By harnessing our Group’s expertise and knowledge developed in Australia, EESI Remediation, a specialist UK remediation contractor has been developing its capabilities for both PFAS source soil and wider groundwater plume treatment. 

Core to this offering is our expertise in conditioning soil to uptick the efficiency of mixing immobilising agents into PFAS contaminated soil using our bespoke MUST (Mobile – Units – for – Soil – Treatment) mixing plant.  

Why is this important? Our MUST mixing plant provides three stages of mixing that combine both the cutting and pulverisation of soil to produce a 5 to 20 mm soil granulation following initial pre-conditioning. This effective opening up of the soil structure significantly increases localised PFAS mass flux transfer and the uniform, embedded, distribution of the nominated sorbents; both key mechanisms for effective and long-term immobilisation of PFAS.  

Taking another perspective, through the use of our MUST mixing units we can ‘make a little go a long way’ and this reduction in the amount of immobilising products can significantly reduce the cost of treatment. With access to a number of proven proprietary PFAS sorbent and solidification products we are confident that we can offer competitive full-scale treatment services – adding further value through experienced input/advice on the characterisation and conceptual understanding of the PFAS problem to be addressed, providing a range of laboratory and pilot scale study options and help developing sustainable, zero waste, remediation strategies for both soil and groundwater PFAS treatment.  

From turnkey to sub-contract support we would be more than happy to help you solve your PFAS problems. So, if you would like to know more or have a PFAS problem site you’d like to discuss, please feel free to contact us. 

If you are interested in learning more about the remediation of PFAS Impacted Soil, or have a project coming up where we may be able to help, please get in touch. You can drop us an email, or leave your details below and click ‘Get in touch’.  

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